As an introduction to UNIX, we'll cover the basics of using the command line. This may be useful particularly for those of you who are not very familiar with the Linux system in use at the GSC. Topics to be covered: navigating the file system, viewing and editing text files, permissions, customizing the shell environment, input and output redirection, job control, command line goodies, command line Perl, and others. Those of you more familiar with UNIX are also welcome to attend - you might pick up a tidbit of useful information, and even better you can share with us tips and tricks that you have found helpful.